25. Which type of network is used to connect wireless headphones to a smartphone?
Answer: B
Personal area network (PAN) is used to connect wireless headphones to a smartphone.
Wireless headphones typically connect to a smartphone using Bluetooth technology, which operates under the personal area network (PAN) category. This type of network is specifically designed for short-range communication between personal devices.
A) Extended area network (EAN)
An extended area network (EAN) is not applicable in this context as it refers to a type of network that covers a larger geographic area than a typical local area network but is not specifically designed for personal device connectivity. EANs are generally used for broader communications and do not pertain to the direct, short-range connections between devices like headphones and smartphones.
B) Personal area network (PAN)
A personal area network (PAN) is the correct choice because it is specifically designed for connecting personal devices over short distances, typically within a range of a few meters. Bluetooth connections, which are commonly used for wireless headphones, fall under this category, making PAN the most suitable option for this scenario.
C) Local area network (LAN)
A local area network (LAN) connects devices within a limited area, such as a home, office, or building. While LANs facilitate communication between multiple devices, they are not specifically designed for personal device connections like those of wireless headphones to smartphones, which operate over short distances.
D) Wide area network (WAN)
A wide area network (WAN) spans a much larger geographic area and is used to connect multiple local area networks. WANs are not suitable for the direct connection of personal devices like wireless headphones to smartphones, as they are designed for long-distance data transmission rather than short-range personal connectivity.
Conclusion
The personal area network (PAN) is definitively the correct answer because it specifically addresses the needs of connecting personal devices over short ranges, such as wireless headphones to smartphones. All other options—EAN, LAN, and WAN—fail to meet the requirements of personal device connectivity, focusing instead on larger-scale networking solutions.